feat: Ability to disable signups and disable email verification for self-hosters

.env.self-host.example

@@ -145,6 +145,21 @@ SMTP_DOMAIN=smtp.example.com
 # Default: true
 # AUTO_PROJECT_DISABLE=false
 
+# ========================================
+# OPTIONAL: Self-Hosting User Management
+# ========================================
+# Controls whether new user signups are allowed
+# When enabled (true), the signup endpoint will reject new user registration attempts
+# Useful for private instances or when you want to manually manage users
+# Default: false
+# DISABLE_SIGNUPS=false
+
+# Controls whether email validation checks are performed on signup
+# When enabled (true), validates emails for disposable domains, plus-addressing, domain existence, and MX records
+# When disabled (false), skips these validation checks and allows any email format
+# Default: false
+# VERIFY_EMAIL_ON_SIGNUP=false
+
 # ========================================
 # ADVANCED (rarely needed)
 # ========================================